The O'Neill Heat Ninja 3mm Split Toe Booties deliver warmth and board feel for mid-season cold water sessions — built with FluidFlex neoprene and a split-toe design that keeps you connected to your board through every turn.

Key Features:

• Split-Toe Design — separates the big toe from the rest for improved grip, board feel, and stability through rail-to-rail surfing compared to a standard round-toe bootie
• 3mm Thickness — ideal for water temps in the mid-50s to low-60s°F; the right call for fall and early spring sessions in mid-Atlantic and similar conditions
• FluidFlex Neoprene — O'Neill's most flexible wetsuit material moves naturally with your foot, eliminating the stiffness that kills board feel in heavier booties
• Glued and Blindstitched Seams — water-resistant construction throughout the bootie prevents cold water entry at panel joints
• Anti-Flush Shin Strap — compresses at the ankle to block water from cycling through during duck dives and paddle-outs
• Micro-Diamond Grip Sole — lightweight, low-profile rubber sole delivers grip on the board without adding unnecessary bulk between foot and deck
• Krypto Armor Exterior Instep — reinforced protection across the top of the foot for durability against regular use and abuse

The Ninja bootie is built for surfers who've spent a session in a round-toe and vowed never to go back. The split-toe gives you back the board feel you sacrifice with standard booties — warmth without the disconnect.

Sizing: Available in men's sizing. Size up half a size if between sizes for comfortable fit with a wetsuit. Rinse inside-out after each session and hang dry away from direct sun.